OSV-2022-127 Heap-use-after-free in UA_ServerConfig_clean
A heap-use-after-free vulnerability in the OPC UA library allows attackers to cause denial of service or potentially execute code via crafted messages.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2022-127?
OSV-2022-127 is an use after free vulnerability in open62541, published on 7 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=44434
Crash type: Heap-use-after-free READ 8
Crash state:
UA_ServerConfig_clean
fuzz_binary_message.cc
UA_memoryManager_free
Which versions are affected by OSV-2022-127?
1 open source package ship an affected version, including open62541.
| Package | Affected | Fixed in |
|---|---|---|
open62541 OSS-Fuzz | All versions | None |
How do I fix OSV-2022-127?
No fix has been published for OSV-2022-127 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is OSV-2022-127 being exploited?
There is no known exploitation of OSV-2022-127 in the wild and no public exploit code.